[Anaiah]

Many RPI muds have such scenarios. On Armageddon Mud, there are various tribes and family groups with their own special role calls put out, etc. And on EOE mud, one of the central themes of play as a human is being part of a human city dominated by 5 families, all of which you can app into, along with smaller, more transitive minor families in other parts of the city. I highly encourage you to check into RPI muds for this, because I've had a good time playing such a family role in more than one, though in neither of them is it a scenario of a family being alone stranded somewhere.